Process for manufacturing synthetic caoutchouc.



g which the following is a specification.

process for manufacturing synthetic caoutthen been converte mg a vlscous mass, which 1s 1n the usual No Drawing.

STATES 4' Specification of Letters Patent.

COURT KARL FRIEDRICH LEO GROSS,-

CHRISTIANIA, NORWAY.

PROCESS FOR MANUFACTURING SYNT IEETIC CAOUTCHOUC.

Patented Mar. 2a, 1914.

Application filed June 12,1913. Serial No. 773,249.

To all whom it may concern Be it known that I, COURT KARL FRIED- mon LEO Gnoss, a subjectof the. King of Norway, residing at Christi ania, in the Kingdom of Norway, have invented certain new and useful Improvements in Processes for hlanufacturing Synthetic Caoutchouc, of

My present invention has for its object a manner washed, and dried. During the process it is observed that the trio-xymethylene is changed, but the exact nature of this change has not been determined. It appears that the trioxymethylcne does not comblne in any way with the isoprene and it may be that the action of the trioxymethy-' lene is merely that of a catalyst so far as the isoprene is concerned.-'

Having now described my invention what I claim and- Patent is: a 1.- The process of manufacturing caoutchouc from isoprene which comprises heating the .isoprene in contact with trioxymethylene until a viscous mass is obtained.

desire to protect by Letters .2. Theprocess of manufacturing caout-' chouc from isoprene which consists in heating isoprene' and dissolved trloxylnethylene in a closed chamber to a temperature of from 100 C. to 200 C, forfrom- 1 to 3 hours, cooling the materials and separatlng the caoutchouc so formed.

In testimony whereof I haveaffixed my signature in presence of two W1tnesses.

counr KARL rammnca 1 110 Gross.-

. Witnesses:

M.- E. GUcHoRMsnN, RUTH Lmns'rnom. 

